Answer:
I'm pretty sure its A
Step-by-step explanation:
Answer:
The angles that are supplementary to angle 7 includes angle 5 and angle 8.
If the equation

has undergo completing the square, the answer would be:


**In this example, since 6x is the middle term, what comes to my mind is the polynomial (x+3) because 2ab results into 6x. [from the special products lesson

]

So if the equation is equal to y, then this equation's

The vertex would be on the point (-3, -17)
B i think the answer is for #5
Step-by-step explanation:
- 2x-2y=-6
3x+4y=8
multiply equation (1) by 3 and equation (2) by 2
- 6x-6y=18
6x+8y=16
Add
2y=34
y= 34÷2
y=17
substitute 17 for y in equation (2)
3x+4y=8
3x+4(17)=8
3x+68=8
3x=8-68
3x=-60
x=-60÷3
x=-20
x=-20,y=17